3cdz is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
[FA8_HUMAN] Factor VIII, along with calcium and phospholipid, acts as a cofactor for factor IXa when it converts factor X to the activated form, factor Xa.
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Factor VIII is a procofactor that plays a critical role in blood coagulation, and is missing or defective in hemophilia A. We determined the X-ray crystal structure of B domain-deleted human factor VIII. This protein is composed of five globular domains and contains one Ca(2+) and two Cu(2+) ions. The three homologous A domains form a triangular heterotrimer where the A1 and A3 domains serve as the base and interact with the C2 and C1 domains, respectively. The structurally homologous C1 and C2 domains reveal membrane binding features. Based on biochemical studies, a model of the factor IXa-factor VIIIa complex was constructed by in silico docking. Factor IXa wraps across the side of factor VIII, and an extended interface spans the factor VIII heavy and light chains. This model provides insight into the activation of factor VIII and the interaction of factor VIIIa with factor IXa on the membrane surface.
Crystal structure of human factor VIII: implications for the formation of the factor IXa-factor VIIIa complex.,Ngo JC, Huang M, Roth DA, Furie BC, Furie B Structure. 2008 Apr;16(4):597-606. PMID:18400180[79]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
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↑Albanez S, Ruiz-Saez A, Boadas A, de Bosch N, Porco A. Identification of factor VIII gene mutations in patients with severe haemophilia A in Venezuela: identification of seven novel mutations. Haemophilia. 2011 Sep;17(5):e913-8. doi: 10.1111/j.1365-2516.2011.02500.x. Epub, 2011 Mar 4. PMID:21371196 doi:10.1111/j.1365-2516.2011.02500.x
↑Ngo JC, Huang M, Roth DA, Furie BC, Furie B. Crystal structure of human factor VIII: implications for the formation of the factor IXa-factor VIIIa complex. Structure. 2008 Apr;16(4):597-606. PMID:18400180 doi:10.1016/j.str.2008.03.001
